Gnome: set up gtk

roles/gnome/gnome.nix

@@ -1,4 +1,4 @@
-{pkgs, ...}: {
+{pkgs, flakeSelf, ...}: {
   services = {
     xserver = {
       displayManager.gdm.enable = true;
@@ -21,6 +21,17 @@
   ];
 
   home-manager.users.toast = {
+    gtk = {
+      enable = true;
+      theme = {
+        name = "adw-gtk3-dark";
+        package = pkgs.adw-gtk3;
+      };
+      cursorTheme = {
+        name = "Kasane Teto";
+        package = flakeSelf.outputs.packages.x86_64-linux.kasane-teto-cursor;
+      };
+    };
     dconf.settings = {
       "org/gnome/shell".enabled-extensions = [
         "appindicatorsupport@rgcjonas.gmail.com"